1. Radiodiagnostic and Interventional Radiology Department, Institute for Clinical and Experimental Medicine, Videnska 1958/9, 140 21 Prague, Czech Republic
2. Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University, Katerinska 1660/32, Prague 121 08, Czech Republic
3. Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky square 2, 162 06 Prague, Czech Republic
4. Faculty of Health Studies, Technical University of Liberec, Studentska 1402/2, Liberec 461 17, Czech Republic
5. Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, Prague, 128 00, Czech Republic